What to do with the leftover mashed potatoes? This mashed potato waffles recipe is easy and incredibly delicious…and the best part? It uses ingredients you already have!
This recipe has been updated from the original posted November 27, 2019.
What to do with the leftover mashed potatoes? Make waffles, of course! I hate to waste food. I’m the queen of repurpose. I don’t mind calling food what it is—leftovers—-but some people have an aversion to leftovers—so it’s best to invent a totally new dish with what you’ve got on hand. Mashed Potato Waffles it is then!
To be honest, I have made these many times when it wasn’t the day after Thanksgiving, and I didn’t have any leftover mashed potatoes. I use this recipe for vegan mashed potatoes as a guide and basically boil up some potatoes, cauliflower, and parsnips with some garlic and then mash when I need some. Works like a charm in this recipe for the savory waffles.
Ingredients and Substitutions
- Egg (or vegan replacement): You need to use something to bind the batter together. In addition to regular eggs, you can make a flax egg or a chia egg and let that sit until it has “gelled”. Make sure to use ground flax or ground chia seeds. Sprinkle a bit more in your batter if it’s too loose.
- Veggies: What’s in your fridge? Chop it up! Cooked or raw will work. Broccoli, red peppers, green beans, mushrooms, brussels sprouts, cabbage, the sky’s the limit!
- Fresh herbs: Use what you HAVE…if it’s Thanksgiving weekend and you have extra sage, thyme, rosemary, parsley….go for it! Cilantro is perfect if you’re setting up a mexican themed toppings bar.
- Beans or Lentils: Sure. Add them to the “batter” or sprinkle them on top for a protein boost.
- Grains: What else would you like to repurpose?
- Stuffing: YES!!! This recipe is the perfect vehicle to repurpose stuffing as well. Never heard of leftover stuffing waffles? Oh, they’re totally a thing!
How to make savory waffles
First, determine how many waffles you need to make and gather your ingredients. for every one cup of mashed potatoes (or mashed cauliflower or mashed parsnips….even mashed acorn squash…use what you have leftover!), use one egg (and YES, VEGAN flax egg totally works!!!)
Mix together the leftover potatoes, egg, green onions, chopped parsley, salt and pepper.
Super important next step. Make sure to preheat your waffle iron. If you’ve used a vegan egg replacement, this is a good chance for it to sit in the batter. Give the potato waffle batter a good stir again before loading into the waffle iron.
Follow the directions for YOUR waffle iron. If it says to grease, then do it! If it says to spray with oil before you preheat, do it! With a non-stick waffle iron, you can make oil-free waffles.
Once you’ve set the “doneness” on your waffle iron, then leave them to cook until you hear the beep. If you open your waffle iron too soon, the batter will likely stick to each side and crack open down the center.
If this is your first time making leftover savory waffles, then try to stick to the recipe. Next time, you can add all kinds of fun things to the batter. I often include chopped fresh veggies like bell peppers or something else colorful.
Waffles will be golden brown when done and the lid should open easily. You may need to use a fork to gently peel the waffle off the top grate, but that should be EASY to do.
I’m all about the flavor and the texture. I like to add stuff both inside and outside my savory waffles. Tell me in the comments what you’re going to embellish your mashed potato waffles with!
Debra’s Pro Tips
- Preheat the waffle iron.
- Set up a DIY toppings bar and let everyone make their own!
- It’s quick and easy to make this savory waffle batter, so make several. Use your leftover stuffing in one, leftover cauliflower mash in another, and an assortment if that’s what you have on hand.
- Simple works too. A slice of avocado and a squirt of sriracha is my favorite topping for waffles that include black beans.
- Cranberry chia jam tastes delish on top of a Thanksgiving themed leftovers waffle.
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Mashed Potato Waffles
- 1 cup mashed potatoes*
- 1 egg
- 2 Tablespoons chopped parsley
- 3 scallions thinly sliced
- ½ teaspoon coarse sea salt
- ½ teaspoon crushed red pepper
- Preheat waffle iron.
- In a large bowl, using a fork, mix together all ingredients.
- Generously scoop batter into waffle iron. How much will depend on the style/size of YOUR waffle Iron. I used about 1/2 cup batter for each waffle in MY waffle iron.
- WAIT FOR THE BEEP.
- Be generous with the toppings….and enjoy!